A1.A cell is a device that converts chemical energy to electrical energy.

A2.The electrodes, the electrolyte, and the container.

A3.The electrodes are the current conductors of the cell. The electrolyte is the solution that acts upon the electrodes. The container holds the electrolyte and provides a means of mounting the electrodes.

A4.Primary and secondary.

A5.The secondary cell can be restored to its original condition by an electric current. The primary cell cannot.